5-9
5.6.3 AF Output level adjustment
(1) Setting of measurement system
MT8802A
Analog measure-AF measure
AF Osc.1 Freq.=“1 kHz”, Level=“2V”
AF Osc.2=“off”
AF Output Impedance=“600 Ω”
HP8903 Audio Analyzer
LPF=“30 kHz”
• Connect the MT8802A AF Output to the HP8903 AF input (100 k ohms) termi-
nal.
(2) Adjust the R100 (OSC variable resistor) so that the HP8903 measurement result
(AF level) is within 1.988 Vrms ±0.5%.
5.6.4 AF Osc.2 level adjustment
(1) Setting of measurement system
MT8802A
Analog measure-AF measure
AF Osc.1=“off”
AF Osc.2 Freq.=“1 kHz”, Level=“2V”
AF Output Impedance=“600 Ω”
HP8903 Audio Analyzer
LPF=“30 kHz”
• Connect the MT8802A AF Output to the HP8903 AF input (100 k ohms) termi-
nal.
(2) Adjust the R61 (DA2 variable resistor) so that the HP8903 measurement result
(AF level) is within 1.988 Vrms ±0.5%.
5.6 A16 AF